Enthalpies of formation of dinitrophenylmethane, trinitrophenylethane, and fluorodinitrophenylamine

  • V. I. Pepekin
  • Yu. N. Matyushin
  • G. G. Rozantsev
  • S. A. Shevelev
  • A. Ya. Apin
Physical Chemistry

Conclusions

  1. 1.

    An experimental determination was made of the heats of combustion (−853.4±1.4; −987.1±0.9; −815.2±0.4 kcal/mole) and sublimation (18.2±0.2; 20.1±0.1; 12.6±0.2 kcal/mole) of dinitrophenyl-methane, trinitrophenylethane, and fluorodinitrophenylmethane, respectively.

     
  2. 2.

    The enthalpies of formation of these compounds in the gas phase (8.3±1.6; 15.7±1.0 and −44.2 ±0.6 kcal/mole) were calculated.

     
  3. 3.

    The energies of the C-C bond between the phenyl (and also benzyl) radical and the polynitromethyl radical D[Ph-CH(NO2)2]=100.2±5.1, D[PhCH2-C(NO2)3]=79.1±3.5, D[Ph-CF(NO2)2]=105.1+5.4 kcal /mole were calculated.

     

Keywords

Combustion Enthalpy Phenyl Benzyl Experimental Determination 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    Yu. A. Lebedev, E. A. Miroshnichenko, and Yu. K. Knobel', Thermochemistry of Nitrocompounds [in Russian], Nauka (1970).Google Scholar
  2. 2.
    Yu. N. Matyushin, I. B. V'yunova, V. I. Pepekin, and A. Ya. Apin, Izv. Akad. Nauk SSSR, Ser. Khim., 2443 (1971).Google Scholar
  3. 3.
    V. I. Pepekin, T. N. Dymova, Yu. A. Lebedev, and A. Ya. Apin, Zh. Fiz. Khimii,37, 1024 (1967).Google Scholar
  4. 4.
    J. Lacher and H. Skinner, J. Chem. Soc.,A, 1034 (1968).Google Scholar
  5. 5.
    S. Benson, J. Chem. Educ.,42, 502 (1965).Google Scholar
  6. 6.
    G. M. Nazin, G. B. Manelis, and F. I. Dubovitskii, Izv. Akad. Nauk SSSR, Ser. Khim., 2631 (1968).Google Scholar
  7. 7.
    M. Zimmer, R. Robb, E. Baroody, and G. Carpenter, J. Chem. Eng. Date,11, 577 (1966).Google Scholar
  8. 8.
    V. I. Vedeneev, L. V. Gurvich, V. N. Kondrat'ev, V. A. Medvedev, and E. L. Frankevich, Cleavage Energies of Chemical Bonds. Ionization Potentials and Electron Affinity [in Russian], Izd. AN SSSR (1962).Google Scholar
  9. 9.
    V. I. Pepekin, Yu. A. Lebedev, A. A. Fainzil'berg, G. G. Rozantsev, and A. Ya. Apin, Zh. Fiz. Khimii,43, 2597 (1969).Google Scholar
  10. 10.
    K. Mortimer, Heats of Reactions and Strength of Bonds [Russian translation], Mir (1964), p. 233.Google Scholar

Copyright information

© Consultants Bureau 1973

Authors and Affiliations

  • V. I. Pepekin
    • 1
    • 2
  • Yu. N. Matyushin
    • 1
    • 2
  • G. G. Rozantsev
    • 1
    • 2
  • S. A. Shevelev
    • 1
    • 2
  • A. Ya. Apin
    • 1
    • 2
  1. 1.Institute of Chemical PhysicsAcademy of Sciences of the USSRUSSR
  2. 2.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRUSSR

Personalised recommendations